PRETEST: Greatest Common Factor and Least Common Multiple

Greatest Common Factor and Least Common Multiple

• 8

• 9

• 12

• 4

Find the greatest common factor (GCF) of 66 and 77.

• 11

• 6

• 7

• 12

Find the greatest common factor (GCF) of 68 and 76.

• 4

• 2

• 8

• 6

Find the greatest common factor (GCF) of 54 and 63.

• 9

• 6

• 7

• 3

Find the greatest common factor (GCF) of 80 and 70.

• 10

• 8

• 7

• 5

Find the greatest common factor (GCF) of 72 and 84.

• 12

• 9

• 7

• 6

Use the GCF and the distributive property to find the expression that is equivalent to 36+60.

• 12 (3+5)

• 6 (6+10)

• 3 (12+20)

• 18 (2 +4)

Use the GCF and the distributive property to find the expression that is equivalent to 27+36.

• 9 (3 +4)

• 2 (9 +18)

• 3 (9 +12)

• 9 (3 + 3)

Use the GCF and the distributive property to find the expression that is equivalent to 36+54.

• 18 (2 +3)

• 9 (4 + 6)

• 6 (6 + 9)

• 3 (12 +18)

Find the least common multiple (LCM) of 8 and 10.

• 40

• 20

• 10

• 80